EverGuard TPO Smooth Membranes

EverGuard TPO Smooth Membranes are smooth reinforced thermoplastic polyolefin (TPO) single-ply roof membranes with heat-welded seams. They are made in 45, 60 and 80 mil for low-slope commercial roofing in the United States and are suited to mechanically attached, adhered and induction-welded systems.

TPO needs no plasticizers for flexibility and has natural fungal resistance, meeting ASTM G21. The EverGuard TPO core formula has been installed on more than 7 billion square feet of roofs and in the field for more than 20 years.

It is the standard white and colored line of TPO membrane roofing from GAF. It is made at Mount Vernon, IN; New Columbia, PA; Cedar City, UT; Gainesville, TX; and Valdosta, GA.

Nominal thickness is tested under ASTM D751 and thickness over scrim under ASTM D7635. The ASTM D6878 minimums are 0.039 in. and 0.015 in. The 60 mil membrane is also available in a minimum 60 mil version.

• 45 mil: nominal thickness 0.045 in. (1.14 mm); 15.8 mil nominal over scrim.
• 60 mil: 0.060 in. (1.52 mm); 24.1 mil nominal over scrim.
• 80 mil: 0.080 in. (2.03 mm); 31.4 mil nominal over scrim.

In the ASTM D6878 weather-resistance test the membrane lasts 2 to 2.5 times the industry standard, depending on thickness. Guarantees for eligible systems are available up to 20 years for 45 mil, 25 years for 60 mil and 30 years for 80 mil, with additional requirements.

Rolls are 100 feet (30.5 m) long. The 12 foot width covers more area with fewer rolls and fewer seams.

• 12 ft (3.66 m), 1,200 sq ft (111.5 sq m): 307 lb (139 kg) at 45 mil; 386 lb (175 kg) at 60 mil; 504 lb (228 kg) at 80 mil.
• 10 ft (3.05 m), 1,000 sq ft (92.9 sq m): 256 lb (116 kg); 322 lb (146 kg); 420 lb (191 kg).
• 8 ft (2.43 m), 800 sq ft (74.3 sq m): 204 lb (93 kg); 257 lb (117 kg); 336 lb (152 kg).
• 6 ft (1.83 m), 600 sq ft (55.7 sq m): 153 lb (70 kg); 194 lb (88 kg); 252 lb (114 kg).
• 5 ft (1.52 m), 500 sq ft (46.5 sq m): 128 lb (58 kg); 162 lb (74 kg); 210 lb (95 kg).

Smooth TPO rolls ship horizontally, banded and stacked pyramid-style on pallets. A clean, dry area below 100°F (38°C) is the storage condition, and two people or more are needed per roll.

Available colors are White, Gray, Energy Gray, Slate Gray, Tan, Energy Tan, Desert Tan, Dark Bronze, Dark Brown, Goldenrod, Sky Blue, Regal Blue, Electric Blue, Hartford Green, Patina Green, Regal Red and Terra Cotta.

White, Energy Tan and Energy Gray form the reflective group that can reduce cooling costs and the urban heat island effect.

Each color has a CRRC rating based on ASTM C1549, C1371 and E1980. Aged values marked with an asterisk are interim laboratory figures.

• White (0676-0001): initial 0.81, 0.90, SRI 101; aged 3 years 0.75, 0.90, SRI 92.
• Tan (0676-0002): initial 0.65, 0.90, SRI 79; aged 0.59, 0.84, SRI 69.
• Gray (0676-0003): initial 0.59, 0.90, SRI 70; aged 0.55, 0.91, SRI 65.
• Energy Tan (0676-0039): initial 0.72, 0.89, SRI 89; aged 0.66, 0.89, SRI 80.
• Energy Gray (0676-0045): initial 0.72, 0.87, SRI 88; aged 0.67, 0.90, SRI 82.
• Regal Blue (0676-0181): initial 0.26, 0.91, SRI 28; aged 0.24, 0.91, SRI 24.
• Patina Green (0676-0182): initial 0.34, 0.90, SRI 38; aged 0.30, 0.90, SRI 32.
• Goldenrod (0676-0183): initial 0.61, 0.90, SRI 74; aged 0.51, 0.90, SRI 60.
• Desert Tan (0676-0184): initial 0.45, 0.90, SRI 52; aged 0.39, 0.90, SRI 44.
• Terra Cotta (0676-0186): initial 0.35, 0.90, SRI 38; aged 0.31, 0.90, SRI 33.
• Regal Red (0676-0187): initial 0.35, 0.90, SRI 38; aged 0.30, 0.99, SRI 33.
• Dark Bronze (0676-0188): initial 0.28, 0.91, SRI 30; aged 0.25, 0.91, SRI 25.
• Slate Gray (0676-0189): initial 0.38, 0.90, SRI 43; aged 0.33, 0.90, SRI 36.

The smooth TPO values are approximate guides. Some are machine direction by cross machine direction.

• Breaking strength (grab method): 375 by 330 lbf (1,668 by 2,188 N) at 45 mil; 400 by 360 lbf (1,779 by 1,601 N) at 60 mil; 440 by 390 lbf (1,957 by 1,735 N) at 80 mil. The minimum is 220 lbf (978 N).
• Elongation at break: 30% at all thicknesses; the minimum is 15%.
• Tear strength (8 in. by 8 in. sample): 90 by 120 lbf (400 by 534 N); 70 by 130 lbf (311 by 578 N); 100 by 180 lbf (445 by 801 N). The minimum is 55 lbf (245 N).
• Factory seam strength, membrane failure: 115 lbf (512 N); 145 lbf (645 N); 155 lbf (689 N). The minimum is 66 lbf (294 N).
• Weather resistance (ASTM G155): more than 20,000 kJ/(m²·nm) at 340 nm at 45 mil and more than 25,000 at 60 and 80 mil. The minimum is 10,080.
• Puncture resistance (FTM 101C Method 2031): above 350 lb (159 kg) at 45 mil, above 380 lb (172 kg) at 60 and 80 mil.
• Dynamic puncture resistance (ASTM D5635): 17.5 J at 45 mil, 25 J at 60 mil and 37.5 J at 80 mil.
• Linear dimensional change (ASTM D1204): 0.2%, 0.4% and 0.4%; the limit is plus or minus 1%.
• Water absorption (ASTM D471): 0.7% at all thicknesses; the limit is plus or minus 3%.
• Brittleness point (ASTM D2137): -40°F (-40°C).
• Ozone resistance: no visible deterioration at 7x magnification under ASTM D1149.
• Heat aging (ASTM D573) and accelerated UV exposure (UAWS): pass at all thicknesses.
• Air permeance under ASTM E2178 is below 0.02 L/(s·m²). Permeance (ASTM E96): less than 0.08 perms.

GAF acquired and analyzed EverGuard TPO samples from roofs across the United States. Roofs 8 to 16 years old were performing well, and in most instances met the ASTM D6878-19 requirements for new membranes.

• Mechanically attached: installed practically year-round.
• Induction welded: no adhesives, practically year-round, with the same guarantee length as an adhered system.
• Adhered: with EverGuard TPO Quick Spray, TPO Quick Spray LV50, TPO Low VOC Bonding Adhesive, TPO 3 Square Low VOC Bonding Adhesive, TPO SBA 1121 Bonding Adhesive or WB 181 Bonding Adhesive.

The 60 mil and 80 mil smooth membranes are available with MembraneShield Temporary Dirt-Blocking Film, a monolayer protective sheet adhered with a water-insoluble acrylic-based adhesive. It stays on during roof installation and is removed after installation or up to 90 days later. Only labeled rolls include it.

• EverGuard TPO Primerless 6 in. Cover Tape: self-adhering unreinforced TPO with a butyl backing.
• EverGuard TPO Split Pourable Sealer Pocket: low-profile, can be cut down to fit around penetrations.
• EverGuard TPO Vent Boot: molded in one size for pipes and conduits of 1 to 6 in. (25.4 to 152 mm), with stainless steel clamping rings.
• EverGuard TPO Scuppers: TPO-coated metal and unreinforced membrane for wall scuppers.

• UL classification under ANSI/UL 790 includes Class A-rated roofing assemblies.
• FM Approved.
• Miami-Dade County Product Control Approved.
• ASTM D6878 requirements met or exceeded.
• State of Florida Approved.
• The membrane meets or exceeds Texas Department of Insurance requirements.
• Title 24, Part 6 Cool Roof Requirements of the California Code of Regulations (white only).
• ICC-ES Evaluation Report ESR-4676, Cedar City, UT only.
• UL Evaluation Report UL ER1306-01.